Biology Objective Questions and Answers: Animal Kingdom
Review structured MCQ sets for NEET Biology Animal Kingdom. Built according to official NEET guidelines, these downloadable questions support daily revision and core concept reinforcement.
Download Animal Kingdom MCQs with Answers
View or download the dedicated Animal Kingdom MCQ resource below. Practicing these 50 objective questions regularly builds familiarity with standard exam patterns and helps secure higher marks in final Biology evaluations.
Multiple Choice Questions
(a) Aves - The hind limbs generally have scales and are modified for walking.
(b) Reptilia - 10 pairs cranial nerves and dicondylic skull
(c) Cyclostomata - Skin is covered with scales.
(d) Osteichthyes - Gill slits are separate and without operculum.
Show Answer & Explanation
Answer: (a) Aves - The hind limbs generally have scales and are modified for walking.
Explanation:
1. Birds have scaly hind limbs modified for walking, swimming or clasping.
Teacher's Note:
1. Pairs of animal and common name or group are frequent questions.
2. Make a list of one example for each class so you can match quickly.
(a) Air bladder is present.
(b) Respiration by 4-pairs of gills and these gills are covered by operculum.
(c) Male fishes have 'claspers' as copulatory organ so that fertilization is internal.
(d) All of these
Show Answer & Explanation
Answer: (c) Male fishes have 'claspers' as copulatory organ so that fertilization is internal.
Explanation:
1. Male cartilaginous fishes have claspers, so fertilisation is internal; they have no air bladder or operculum.
Teacher's Note:
1. Learn each phylum by level of organisation, symmetry, germ layers, coelom type and one distinguishing feature.
2. Examples help: Porifera Spongilla, Cnidaria Hydra, Platyhelminthes Taenia, Aschelminthes Ascaris, Annelida Nereis, Arthropoda Apis, Mollusca Pila, Echinodermata Asterias.
(a) Rana, Clarias, Testudo, Struth io - Poikilothermous
(b) Chameleon, Psittacula, Salamendra - Amniotes
(c) Corvus, Columba, Camelus, Elephas - Dicondylic skull
(d) Naja, Bungarus, Viper - Poisonous snake
Show Answer & Explanation
Answer: (d) Naja, Bungarus, Viper - Poisonous snake
Explanation:
1. Naja, Bungarus and the viper are poisonous snakes.
Teacher's Note:
1. Learn each phylum by level of organisation, symmetry, germ layers, coelom type and one distinguishing feature.
2. Examples help: Porifera Spongilla, Cnidaria Hydra, Platyhelminthes Taenia, Aschelminthes Ascaris, Annelida Nereis, Arthropoda Apis, Mollusca Pila, Echinodermata Asterias.
(A) They possess a vertebral column
(B) Both branchial and pulmonary respiration occur in their life history
(C) Oviparity and viviparity are both represented
(D) They have a 3-chambered heart
(a) A and C
(b) B and D
(c) A, B and C
(d) A and D
Show Answer & Explanation
Answer: (b) B and D
Explanation:
1. Gill respiration in the larva and lung respiration in the adult, with a three chambered heart, place amphibians between fishes and reptiles.
Teacher's Note:
1. Pairs of animal and common name or group are frequent questions.
2. Make a list of one example for each class so you can match quickly.
(a) Doliolum
(b) Ascidia
(c) Balanoglossus
(d) Branchiostoma
Show Answer & Explanation
Answer: (d) Branchiostoma
Explanation:
1. Branchiostoma (amphioxus) keeps notochord, dorsal nerve cord and gill slits throughout life.
Teacher's Note:
1. Learn each phylum by level of organisation, symmetry, germ layers, coelom type and one distinguishing feature.
2. Examples help: Porifera Spongilla, Cnidaria Hydra, Platyhelminthes Taenia, Aschelminthes Ascaris, Annelida Nereis, Arthropoda Apis, Mollusca Pila, Echinodermata Asterias.
(a) Doliolum
(b) Herdmania
(c) Petromyzon
(d) Amphioxus
Show Answer & Explanation
Answer: (c) Petromyzon
Explanation:
1. Petromyzon (lamprey) is jawless, migrates upstream to spawn, is an ectoparasite on fishes and has freshwater larvae.
Teacher's Note:
1. Chordates are separated into protochordates and vertebrates, and vertebrates into Agnatha and Gnathostomata.
2. For classes of vertebrates, compare heart chambers, skin covering, body temperature and mode of development.
A. Star fish: (i) Muscular foot
B. Apple snail: (ii) Comb plates
C. Nereis: (iii) Tube feet
D. Sea walnut: (iv) Parapodia
(a) (iii) (i) (ii) (iv)
(b) (iii) (ii) (i) (iv)
(c) (iv) (iii) (ii) (i)
(d) (iii) (i) (iv) (ii)
Show Answer & Explanation
Answer: (d) (iii) (i) (iv) (ii)
Explanation:
1. Starfish move by tube feet, apple snail by a muscular foot, Nereis by parapodia and sea walnut (a ctenophore) by comb plates.
Teacher's Note:
1. Chordates are separated into protochordates and vertebrates, and vertebrates into Agnatha and Gnathostomata.
2. For classes of vertebrates, compare heart chambers, skin covering, body temperature and mode of development.
(a) Sea horse
(b) Sea lily
(c) Sea mouse
(d) Sea hare
Show Answer & Explanation
Answer: (d) Sea hare
Explanation:
1. Sea hare (Aplysia) is a mollusc; sea horse is a fish, sea lily an echinoderm and sea mouse an annelid.
Teacher's Note:
1. Pairs of animal and common name or group are frequent questions.
2. Make a list of one example for each class so you can match quickly.
(a) A and B
(b) B and C
(c) B and D
(d) B,C and D
Show Answer & Explanation
Answer: (c) B and D
Explanation:
1. Book lungs occur in scorpions and book gills in Limulus; honeybee has tracheae and Sepia has ctenidia.
Teacher's Note:
1. Chordates are separated into protochordates and vertebrates, and vertebrates into Agnatha and Gnathostomata.
2. For classes of vertebrates, compare heart chambers, skin covering, body temperature and mode of development.
(a) Culex
(b) Aedes
(c) Anopheles
(d) All of the above
Show Answer & Explanation
Answer: (d) All of the above
Explanation:
1. Culex, Aedes and Anopheles are all disease vectors.
Teacher's Note:
1. Chordates are separated into protochordates and vertebrates, and vertebrates into Agnatha and Gnathostomata.
2. For classes of vertebrates, compare heart chambers, skin covering, body temperature and mode of development.
(a) C alone
(b) B and C
(c) A, B and C
(d) B, C and D
Show Answer & Explanation
Answer: (c) A, B and C
Explanation:
1. Aptenodytes is a bird, Trypanosoma has a flagellum and Euspongia is the bath sponge; coelenterates are not pseudocoelomate.
Teacher's Note:
1. Pairs of animal and common name or group are frequent questions.
2. Make a list of one example for each class so you can match quickly.
(a) Water available to these animals contains less nitrogen.
(b) Ammonia can be converted into urea.
(c) Excretion of ammonia requires large amount of water, which is available to these animals.
(d) Ammonia helps in checking inflow of water into body.
Show Answer & Explanation
Answer: (c) Excretion of ammonia requires large amount of water, which is available to these animals.
Explanation:
1. Ammonia is very soluble and toxic and needs much water to be removed, which aquatic animals have.
Teacher's Note:
1. Pairs of animal and common name or group are frequent questions.
2. Make a list of one example for each class so you can match quickly.
(a) 1, 2 and 3
(b) 1 alone
(c) 1 and 2 only
(d) 2 and 3 only
Show Answer & Explanation
Answer: (a) 1, 2 and 3
Explanation:
1. Dolphin and blue whale are aquatic mammals, Ornithorhynchus lays eggs and mammals have two occipital condyles.
Teacher's Note:
1. Learn each phylum by level of organisation, symmetry, germ layers, coelom type and one distinguishing feature.
2. Examples help: Porifera Spongilla, Cnidaria Hydra, Platyhelminthes Taenia, Aschelminthes Ascaris, Annelida Nereis, Arthropoda Apis, Mollusca Pila, Echinodermata Asterias.
(a) Fasciola
(b) Ascaris
(c) Taenia
(d) All of the above
Show Answer & Explanation
Answer: (c) Taenia
Explanation:
1. Taenia has no gut and absorbs digested food through its body surface.
Teacher's Note:
1. Chordates are separated into protochordates and vertebrates, and vertebrates into Agnatha and Gnathostomata.
2. For classes of vertebrates, compare heart chambers, skin covering, body temperature and mode of development.
(a) Occipital condyle
(b) Homeothermous
(c) Poikilothemous
(d) Amnion
Show Answer & Explanation
Answer: (d) Amnion
Explanation:
1. Reptiles, birds and mammals are amniotes with an embryonic membrane called the amnion.
Teacher's Note:
1. Pairs of animal and common name or group are frequent questions.
2. Make a list of one example for each class so you can match quickly.
(a) Larvae of a phylum, whose members possess canal system.
(b) Larvae and adults of a phylum whose member possess a water vascular system.
(c) Adults of a phylum whose members possess a spiny body wall and dermal calcareous ossicle.
(d) All of the above
Show Answer & Explanation
Answer: (c) Adults of a phylum whose members possess a spiny body wall and dermal calcareous ossicle.
Explanation:
1. Coelenterates are radial like the adults of echinoderms, which have spiny skin and calcareous ossicles.
Teacher's Note:
1. Learn each phylum by level of organisation, symmetry, germ layers, coelom type and one distinguishing feature.
2. Examples help: Porifera Spongilla, Cnidaria Hydra, Platyhelminthes Taenia, Aschelminthes Ascaris, Annelida Nereis, Arthropoda Apis, Mollusca Pila, Echinodermata Asterias.
(a) The body consists of head, Thorax and abdomen
(b) They display mosaic and stereoscopic vision.
(c) They have book lungs which corresponds to the gills of prawn.
(d) All of the above
Show Answer & Explanation
Answer: (c) They have book lungs which corresponds to the gills of prawn.
Explanation:
1. Book lungs of scorpion correspond to the gills of prawn; the body is cephalothorax and abdomen and the eyes are simple.
Teacher's Note:
1. Learn each phylum by level of organisation, symmetry, germ layers, coelom type and one distinguishing feature.
2. Examples help: Porifera Spongilla, Cnidaria Hydra, Platyhelminthes Taenia, Aschelminthes Ascaris, Annelida Nereis, Arthropoda Apis, Mollusca Pila, Echinodermata Asterias.
A. Echinodermata: (i) Coelom absent
B. Arthropoda: (ii) Haemocoel
C. Aschelminthes: (iii) Pseudocoel
D. Annelida: (iv) Enterocoelous coelom
(v) Schizocoelous coelom
(a) (iii) (i) (v) (iv)
(b) (iii) (ii) (v) (iv)
(c) (iv) (ii) (iii) (v)
(d) (i) (ii) (iv) (iii)
Show Answer & Explanation
Answer: (c) (iv) (ii) (iii) (v)
Explanation:
1. Echinoderms have an enterocoelous coelom, arthropods a haemocoel, aschelminthes a pseudocoel and annelids a schizocoelous coelom.
Teacher's Note:
1. Learn each phylum by level of organisation, symmetry, germ layers, coelom type and one distinguishing feature.
2. Examples help: Porifera Spongilla, Cnidaria Hydra, Platyhelminthes Taenia, Aschelminthes Ascaris, Annelida Nereis, Arthropoda Apis, Mollusca Pila, Echinodermata Asterias.
(a) Amoeboid protozoans
(b) Flagellated protozoans
(c) Ciliated protozoans
(d) Sporozoans
Show Answer & Explanation
Answer: (b) Flagellated protozoans
Explanation:
1. Sponges are believed to have arisen from flagellated protozoans (choanoflagellates).
Teacher's Note:
1. Pairs of animal and common name or group are frequent questions.
2. Make a list of one example for each class so you can match quickly.
(a) Ascidia
(b) Salpa
(c) Doliolum
(d) Branchiostoma
Show Answer & Explanation
Answer: (d) Branchiostoma
Explanation:
1. In Branchiostoma (cephalochordate) the notochord extends from head to tail throughout life.
Teacher's Note:
1. Learn each phylum by level of organisation, symmetry, germ layers, coelom type and one distinguishing feature.
2. Examples help: Porifera Spongilla, Cnidaria Hydra, Platyhelminthes Taenia, Aschelminthes Ascaris, Annelida Nereis, Arthropoda Apis, Mollusca Pila, Echinodermata Asterias.
(a) Betta - Fighting fish
(b) Clarias - Magur
(c) Pterophyllum - Angel fish
(d) All of the above
Show Answer & Explanation
Answer: (d) All of the above
Explanation:
1. Betta (fighting fish), Clarias (magur) and Pterophyllum (angel fish) are correctly matched.
Teacher's Note:
1. Pairs of animal and common name or group are frequent questions.
2. Make a list of one example for each class so you can match quickly.
(a) Bangarus, Testudo
(b) Pavo, Hyla
(c) Clarias, Rana
(d) Felis, Calotes
Show Answer & Explanation
Answer: (a) Bangarus, Testudo
Explanation:
1. Bungarus (snake) and Testudo (tortoise) are both reptiles.
Teacher's Note:
1. Chordates are separated into protochordates and vertebrates, and vertebrates into Agnatha and Gnathostomata.
2. For classes of vertebrates, compare heart chambers, skin covering, body temperature and mode of development.
(a) Living fossil - King crab
(b) Vector - Culex
(c) Gregarious pest - Limulus
(d) Economically important - Apis
Show Answer & Explanation
Answer: (c) Gregarious pest - Limulus
Explanation:
1. The gregarious pest is Locusta; Limulus is a living fossil.
Teacher's Note:
1. Learn each phylum by level of organisation, symmetry, germ layers, coelom type and one distinguishing feature.
2. Examples help: Porifera Spongilla, Cnidaria Hydra, Platyhelminthes Taenia, Aschelminthes Ascaris, Annelida Nereis, Arthropoda Apis, Mollusca Pila, Echinodermata Asterias.
(a) A and C
(b) B and C
(c) D only
(d) A only
Show Answer & Explanation
Answer: (d) A only
Explanation:
1. Ascaris fertilisation is internal; parapodia are annelid structures, Nereis is dioecious and radula is molluscan.
Teacher's Note:
1. Chordates are separated into protochordates and vertebrates, and vertebrates into Agnatha and Gnathostomata.
2. For classes of vertebrates, compare heart chambers, skin covering, body temperature and mode of development.
(a) Taenia
(b) Wuchereria
(c) Pheretima
(d) Apis
Show Answer & Explanation
Answer: (b) Wuchereria
Explanation:
1. Aschelminthes (Wuchereria) are the first to have a complete digestive tract with mouth and anus.
Teacher's Note:
1. Learn each phylum by level of organisation, symmetry, germ layers, coelom type and one distinguishing feature.
2. Examples help: Porifera Spongilla, Cnidaria Hydra, Platyhelminthes Taenia, Aschelminthes Ascaris, Annelida Nereis, Arthropoda Apis, Mollusca Pila, Echinodermata Asterias.
(a) Hyla, Aedes, Crab,
(b) Sea urchin, Sea lily, Sea cucumber
(c) Sea pen, Sea fan, Sea hare
(d) Sand worm, Round worm, Earthworm
Show Answer & Explanation
Answer: (b) Sea urchin, Sea lily, Sea cucumber
Explanation:
1. Sea urchin, sea lily and sea cucumber are all echinoderms.
Teacher's Note:
1. Chordates are separated into protochordates and vertebrates, and vertebrates into Agnatha and Gnathostomata.
2. For classes of vertebrates, compare heart chambers, skin covering, body temperature and mode of development.
(a) Mollusca
(b) Annelida
(c) Arthropoda
(d) Echinodermata
Show Answer & Explanation
Answer: (d) Echinodermata
Explanation:
1. Echinoderms show striking autotomy and regeneration.
Teacher's Note:
1. Pairs of animal and common name or group are frequent questions.
2. Make a list of one example for each class so you can match quickly.
Animal Kingdom Objective Questions & Solutions for NEET Biology
About Animal Kingdom MCQs for NEET Biology
Review structured objective questions for NEET Biology Animal Kingdom. Built according to official NEET guidelines, these MCQ sets support daily revision and core concept reinforcement.
How to Verify Your MCQ Answers
Each question includes structured solution keys mapped directly to standard NEET textbooks, helping students evaluate their reasoning and correct mistakes early in their revision.
Enhance Speed with Online MCQ Tests
Follow up your worksheet practice by attempting the interactive online Biology MCQ test for this chapter to evaluate your execution speed. All platform resources are free to access.
FAQs
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By solving our NEET Biology Animal Kingdom MCQs Set 10, NEET students can improve their accuracy and speed which is important as objective questions provide a chance to secure 100% marks in the Biology.
Yes, Biology MCQs for NEET have answer key and brief explanations to help students understand logic behind the correct option as its important for 2026 competency-focused NEET exams.
Yes, you can also access online interactive tests for NEET Biology Animal Kingdom MCQs Set 10 on StudiesToday.com as they provide instant answers and score to help you track your progress in Biology.